I'm afraid my Pommy background precludes any pretensions to talking Strine. But after years of practice I can be mistaken for an Australian by the English. But I had been here in Australia only six weeks when my Mother on the telephone from England exclaimed "Really David, you sound like an Australian!" And she wasn't pleased.

Dr. Heibel, my old German professor, was from Munich. He went to university somewhere in northern Germany and stayed there for four years. When he returned, his mother cried in anguish at his speech. " Fritz, has become a PRUSSIAN!" she wailed in her best Hochdeutsch.

I support Mr. Meyer's definition above. If we enter "dog's breakfast" into the lookup box on the top page of this website, the resulting definition is "a poor job; a mess"The link to the Phrase Finder gets"This is a 20th century phrase. Eric Partridge, in the 1937 edition of his A Dictionary of Slang and Unconventional English lists it as "a mess: low Glasgow"."The link to Dictonarydotcom says "Chiefly Canadian Slang. a disorderly mixture; hodgepodge. 1935-40"Wikipedia says there was a Canadian movie with this title in 2006The Free Dictionary says "dog's breakfast" and "dog's dinner" are synonyms and speculates on the concept underlying the phrase: "Meaning a mess or muddle, a dog's breakfast or dog's dinner originally may have referred to a cooking mishap with results fit only for a dog's consumption."Finally, if the phrase exists in Strine, it would be something like "bitzer's brekkie" (nice alliteration, eh?)